Several new item abilities and one new monster ability

- Range augment ability for missiles
- Seeking ability for missiles (can strike an adjacent space if targeted space lacks a target, including chance of hitting invisible monsters)
- Weapon that calls node when attacking with it (works both in range and melee; the cases can be distinguished by the node with IF_CONTEXT)
- Armour that calls node when attacked while wearing (works both in range and melee; the cases can be distinguished by the node with IF_CONTEXT)
- Monster ability that calls node when monster attacked (works both in range and melee; the cases can be distinguished by the node with IF_CONTEXT)
- The above three only apply to non-magical attacks - some things don't trigger it, like spells, monster rays and breath weapons, possible a few others
- Armour that protects from all melee damage (including demon/undead, though less)
- Armour that decreases chance to be hit (both in range and melee, against non-magical attacks only)
- Armour that behaves like to the martyr's shield effect but also has a chance of adding some extra bonus damage
- Armour that's more encumbering than advertised (best for cursed items with concealed ability)
- Multiple items with the accuracy ability now stack
- Fix nephilim not getting their racial bonus to missile weapons
- In specials called as part of an attack, the reserved pointer -20 contains the target in a form ready to pass to a SELECT_TARGET node, while -21 and -22 contain the location of the target. This includes the new cases added in this commit plus the monster ability to call a special node on its turn. It does not include specials called in the spell targeting context (to do so would break legacy scenarios), nor specials called after a targeting node.
- If a PC is carrying more than their max weight, they gain encumbrance equal to one-tenth of the excess.
- Add some missing context cases to IF_CONTEXT node

rsrc/strings/monster-abilities.txt

@@ -44,6 +44,7 @@ Summon (%5 chance)
 Summon (%20 chance)
 Summon (%50 chance)
 Run global special during turn
+Run global special when hit
 Death triggers global special
 Radiate fire fields
 Radiate ice fields
@@ -76,7 +77,6 @@ Custom long damage (advanced)
 
 
 
-
 Missile
 Damaging
 Status effect
@@ -178,7 +178,7 @@ Chance of using
 Special to Call
 
 
-
+Special to Call